After compiling and installing a 2.4.4-ac6 kernel I noticed that some programs (notably 'grep') started crashing with 'Bus error's and captured some 'strace' output... In all cases the last four lines of output from strace are: mmap2(0x8059000, 32768, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x8059000 mmap2(0x8059000, 32768, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0xe00008) = 0x8059000 --- SIGBUS (Bus error) --- +++ killed by SIGBUS +++ For those who would like to try and reproduce it, this command generates it every time: $ grep foo /usr/src/linux/Documentation/* So there seems to be some mmap related problem with 2.4.4-ac6. I tried running the exact same commands on a 2.2.17 and 2.2.19 and they do not exhibit this behaviour. I can try some more 2.4.x kernels if the information would be valuable? If there is any other relevant information I can gather, then please let me know and I'll be happy to provide it. I tried searching for "mmap2" and "SIGBUS" on http://www.uwsg.indiana.edu/hypermail/linux/kernel/ but could not find any posts related to this, so I thought it would be ok to post this. Best regards, Jesper Juhl - [EMAIL PROTECTED] - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/